2012年12月4日 星期二

BBC News - Home: Fossil raindrops probe early air

BBC News - Home
The latest stories from the Home section of the BBC News web site.
thumbnail Fossil raindrops probe early air
Dec 4th 2012, 15:20

The imprints of raindrops preserved in 2.7bn-year-old rock are being used to figure out what the atmosphere was like on the early Earth.

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